Self-sealing jar or vessel



(No Model.)

W. D. MGLAUGHLIN.

SELF SEALING JAR OR VESSEL.

No. 597,014. Patented Jan. 11,1898.

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Inveniflor W J k m Minesses:

UNITED STATES Afrni @rricn.

"WILLIAM DJMOLAUGHLIN, OF MERRIAM, KANSAS.

SELF-SEALING JAR on VESSEL.

SPECIFICATION forming part of Letters Patent No. 597,014, dated January 11, 1898. Application filed February 19, 1897. Serial No. 624,109. (No model.)

To a, whom it may concern:

Be it known that I, XVILLIAM D. MCLAUGH- LIN, of Merriam, Johnson county, Kansas, have invented certain new and useful I m provements in Self-Sealing Jars or Vessels, of which the following is a full, clear, and exact description, reference being had to the accompanyin g drawings, forming a part thereof.

My invention relates to seals for jars and articles of like character; and my object is to produce a seal in the form of a cap or stopper which may be quickly and reliably secured in place or removed from position.

The invention consists in certain novel and peculiar features of construction and organization, which will be hereinafter described and claimed.

In order that the invention may be fully understood, I will proceed to describe it with reference to the accompanying drawings, in which- Figure 1 represents a section, taken on the line I I of Fig. 2, of a jar provided with a seal embodying my invention. Fig. 2 represents a horizontal section taken onthe line 11 II of Fig. 1. Fig. 3 represents in side elevation a seal or cap detached from the jar. Fig. 4 represents a cross-section taken on the line XV IV of Fig. 2 with the cap omitted. Fig. 5 represents a top plan view of a jar broken away on a smaller scale. Fig. 6 represents a cross-section taken on the line VI VI of Fig. 5.

In the said drawings, 1 designates a jar or vessel of any material and of any configuration as regards its body portion. It is provided with a shoulder 2, approximately hori' zontal, having an opening surrounded by a neck 3, which neck at its upper end is of circular formation, but at its junction with the body portion or point of connection with the interior of the jar is approximately elliptical-that is to say, the opening leading immediately into the interior of the jar is slightly elongated in form. This is accomplished by tapering said neck downwardly and inwardly at all points except the diametrically opposite points at the ends of said elliptical or elongated opening. At these points the neck or wall is vertical, as shown clearly in Figs. 5 and 6. At diametrically opposite points, at

the junction of the neck and the shoulder 2,

the jar internally is formed with depending enlargements 4:, led up to by sloping or cam shoulders 5, which at their opposite ends merge into the natural plane of the shoulder 2 at its junction with the neck.

6 designates the seal or cap of the jar. It is of tapering form and terminates at its upper end in a diametrically-enlarged head or flange 7 and at its opposite end in a pair of oppositelydisposed lips or lugs 8. At the junction of the body portion or neck with the flange the former is of circular configuration and slightly less in diameter than the upper circular edge of the neck 3, so as to fit snugly therein. Its opposite end in diameter is slightly less than the narrowest portion of the elongated opening forming the point of communication between the interior of the jar and the neck-passage, so as to project downward therethrough and fit snugly therein.

The lips or lugs 8 project externally of the neck at its lower end and elongate it at oppo site points, said lips being of such configuration that they pass easily through the clon gated ends of said opening. Said lips or lugs are of tapering form, as shown most clearly in Fig. 3 and indicated by the numeral 9, so that after the seal or cap is inserted properly in position by rotatably operating the same said sloping lips or lugs engage the cam or sloping shoulders 5, and, acting on the principle of a screw or wedge, clamp the flange or head 7 firmly down upon the top or upper edge of the neck. may be perfectly air and liquid tight, 1 interpose the customary gasket or rubber ring 10 between the neck and said head or flange, said gasket surrounding the body portion or neck of the seal in the customary manner.

By reference to Fig. 2 it will be noticed, as hereinbefore intimated, that the bottom of the seal or cap is of substantially the same configuration as the opening shown most clearly in Fig. 5. Said figure also shows the lips or lugs 8 engaging operatively the sloping or cam shoulders 5, such relation being caused after the proper insertion of the seal or cap by turning or twisting it toward the crests or enlargements 4c of said sloping shoulders. The distance between the crest of said shoulders (represented by the numeral 4) and the upper edge of the neck of the jar is equal In order, however, that this joint to or slightly greater. than the depth of the body portion of the seal or cap, s that there is no possible danger of ever turning the seal sufficiently to cause the lip to pass the crest of said shoulders and therefore loosen or let up in pressure u pon the gasket )r packingring 10. It will 1 e seen that this seal can be quickly and easi y placed. in operative position and is easily removed. It will be noted at this time thati requii es a positive application of laterally-applied force to so dispose or to remove it from positic n, and consequently there is no danger of it= getting loose acct dentally. It will also be noted by reason of such Wedge-like o screw action that it can be single twist.

It is to be understood, of course, that this seal may beused in connection with bottles and cans and in 111 connections to which it may be adapted Such connections are too numerous to enumerate them here.

Having thus described the invention, what I claim as new, and desire to secure by Letters Patent, is-

The combination with ,a cap, provided with a head or flange at its upper edge, and with outwardly-projecting lips or lugs at its lowei end, of a vessel provided with an approxi mately horizontal shoulder 2, and a neck ris ing from the inner margin of said shoulder" said neck being of circular formation at its upper margin, and sloping downwardly and inwardly to its junction with the shoulder at all except two diametrically opposite points at which points it is vertical so as to form an elongated opening leading into the vessel the length of said opening lying between said vertical portionsof the'neck, and provided at points at right'anglesto such Vertical portionsviz., at the narrow portion of such elongated 0peningwith sloping or cam made absolutely air and liquid tight with ashoulders which do not project into the neckopening at all, but depend f1 om the lower end of the neck at its junction with said shoulder 2, so that the neck shall edgewise sustain the entire pressure incident to I lacing and holdin g the cap in position.

In testimony whereof I a my signature in thepresence of two witn 3 cs.

1 WILLIAM D, MGLAUGHLIN. Witnesses: M R. REMLEY,

G. Y. THORPE. 

